Privacy by design means considering personal information throughout the lifecycle of a service rather than waiting for a final review. Early decisions about collection, purpose, data flows, access, retention and disclosure can significantly affect privacy risk.

Product owners, architects, security teams and privacy advisors should work together while requirements and architecture are still flexible. This allows teams to reduce unnecessary data, select appropriate controls and design more transparent user experiences.

Privacy requirements should also carry into operations. Access reviews, retention rules, incident handling and change management all influence whether the service continues to operate as intended.

Candidates should show how their privacy advice influenced design or operating decisions. Practical examples are stronger than simply stating familiarity with privacy-by-design principles.